I forgot to mention this. I checked the logs. nothing useful. fatal error 12170 with no details. it looks like it might be a bug... does anyone know if i can upgrade my current version to the 10.2.0.3 release on otn or do i have to do a full reinstall? On Thu, Nov 20, 2008 at 11:14 AM, David Ballester <ballester.david@xxxxxxxxx > wrote: > > > 2008/11/20 Dba DBA <oracledbaquestions@xxxxxxxxx> > > Windows Server 2003 >> Oracle Standard 10.2.0.1 >> >> Development use. No support. So no patches... can't do anything about it. >> I have an enterprise edition installed with a newer patch set on another >> server, but i have not moved data over to it yet. They build stuff for other >> people and the customers have the production support, etc... >> >> 1. I am trying to describe tables and it hangs on the describe >> 2. I try to describe a large 10gb table and i get an "end of file >> communication" and i lose connection >> 3. I try to query this 10gb table which I was able to do 3 days ago and >> get the first 5 rows and it hangs and runs for 1 hour before I kill it. The >> table should not be fragmented. I have not touched it since the last time I >> looked at it >> 4. I can get the describe to work on #1 if i run it directly from the >> server. >> >> any idea where I can look on this? >> >> >> > > > listener.log and alertlog > > > seems networking problems, but who lnows > > > D. >